toolbar {
  position: absolute;
  background: #fff;
  padding: 10px;
  border-radius: 5px;
  box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.2);
  span {
    &:active {
      opacity: 0.5;
    }
  }
}
.rb {
  right: 20px;
  bottom: 20px;
  font-family: iconfont;
  span + span {
    margin-left: 10px;
  }
}

.lt {
  font-size: 20px;
  left: 20px;
  top: 20px;
  width: 20px;
  span {
    display: block;
  }
  span + span {
    margin-top: 10px;
  }
}
